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Development of Yorkshire Terrier Dentition.
Corrin Wallis1, Francesca Solmi2, Ilaria Pesci1
1Waltham Petcare Science Institute, Waltham-on-the-Wolds, Leicestershire LE14 4RT, UK.
Veterinary Sciences
|July 28, 2023
Summary
This study reveals that Yorkshire terriers experience delayed tooth development and a high incidence of persistent deciduous teeth (PDT), particularly canines, influenced by body weight. Veterinarians should monitor these dogs closely during tooth development for optimal oral care.
Area of Science:
- Veterinary Medicine
- Comparative Animal Dentistry
- Canine Health
Background:
- Canine dentition development presents challenges like overcrowding, missing permanent teeth, and persistent deciduous teeth (PDT).
- Limited data exists on breed-specific dentition development patterns.
Purpose of the Study:
- To determine the average ages of deciduous tooth exfoliation and permanent tooth eruption in Yorkshire terriers.
- To investigate the incidence of PDT and identify influencing factors, such as body weight.
- To provide breed-specific data for improved veterinary dental care.
Main Methods:
- A study involving 61 Yorkshire terriers was conducted.
- Data collected included ages of deciduous tooth loss and permanent tooth eruption.
- Body weight and PDT incidence were analyzed in relation to tooth type and developmental timing.
Main Results:
- Deciduous tooth exfoliation and permanent tooth eruption ages were influenced by body weight and tooth type, occurring later in dogs weighing ≤ 3 kg compared to those > 5 kg.
- Yorkshire terriers exhibited a high incidence of PDT, with canines being the most frequently retained deciduous teeth (15.62% at 4.5 kg body weight).
- The typical eruption sequence was altered in smaller dogs (≤ 3 kg).
Conclusions:
- Body weight significantly impacts dentition development timing and PDT incidence in Yorkshire terriers.
- Canine deciduous teeth are most prone to persistence, especially in smaller individuals.
- Regular monitoring of Yorkshire terriers between two and seven months of age is crucial for managing dental development issues.
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